1
GATE EE 2016 Set 1
Numerical
+2
-0
A single-phase 400 V, 50 Hz transformer has an iron loss of 5000 W at the condition. When operated at 200 V, 25 Hz, the iron loss is 2000 W. When operated at 416 V, 52 Hz, the value of the hysteresis loss divided by the eddy current loss is ________.
Your input ____
2
GATE EE 2016 Set 1
MCQ (Single Correct Answer)
+1
-0.3
In a constant V/f induction motor drive, the slip at the maximum torque
A
is directly proportional to the synchronous speed
B
remains constant with respect to the synchronous speed
C
has an inverse relation with the synchronous speed
D
has no relation with the synchronous speed
3
GATE EE 2016 Set 1
MCQ (Single Correct Answer)
+2
-0.6
Two electric charges q and -2q are placed at (0,0) and (6,0) on the x-y plane. The equation of the zero equipotential curve in the x-y plane is
A
x=-2
B
y=2
C
$$x^2+y^2=2$$
D
$$\left(x+2\right)^2+y^2=16$$
4
GATE EE 2016 Set 1
MCQ (Single Correct Answer)
+1
-0.3
In cylindrical coordinate system, the potential produced by a uniform ring charge is given $$\phi=f\left(r,\;z\right)$$, where f is a continuous function of r and z. Let $$\overrightarrow E$$ be the resulting electric field. Then the magnitude of $$\nabla\times\overrightarrow E$$
A
increases with r
B
is 0
C
is 3
D
decreases with z
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